xref: /openbmc/linux/sound/pci/hda/hda_proc.c (revision e42dd3ee)
1 /*
2  * Universal Interface for Intel High Definition Audio Codec
3  *
4  * Generic proc interface
5  *
6  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
7  *
8  *
9  *  This driver is free software; you can redistribute it and/or modify
10  *  it under the terms of the GNU General Public License as published by
11  *  the Free Software Foundation; either version 2 of the License, or
12  *  (at your option) any later version.
13  *
14  *  This driver is distributed in the hope that it will be useful,
15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  *  GNU General Public License for more details.
18  *
19  *  You should have received a copy of the GNU General Public License
20  *  along with this program; if not, write to the Free Software
21  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
22  */
23 
24 #include <linux/init.h>
25 #include <linux/slab.h>
26 #include <sound/core.h>
27 #include <linux/module.h>
28 #include <sound/hda_codec.h>
29 #include "hda_local.h"
30 
31 static int dump_coef = -1;
32 module_param(dump_coef, int, 0644);
33 MODULE_PARM_DESC(dump_coef, "Dump processing coefficients in codec proc file (-1=auto, 0=disable, 1=enable)");
34 
35 /* always use noncached version */
36 #define param_read(codec, nid, parm) \
37 	snd_hdac_read_parm_uncached(&(codec)->core, nid, parm)
38 
39 static const char *get_wid_type_name(unsigned int wid_value)
40 {
41 	static const char * const names[16] = {
42 		[AC_WID_AUD_OUT] = "Audio Output",
43 		[AC_WID_AUD_IN] = "Audio Input",
44 		[AC_WID_AUD_MIX] = "Audio Mixer",
45 		[AC_WID_AUD_SEL] = "Audio Selector",
46 		[AC_WID_PIN] = "Pin Complex",
47 		[AC_WID_POWER] = "Power Widget",
48 		[AC_WID_VOL_KNB] = "Volume Knob Widget",
49 		[AC_WID_BEEP] = "Beep Generator Widget",
50 		[AC_WID_VENDOR] = "Vendor Defined Widget",
51 	};
52 	if (wid_value == -1)
53 		return "UNKNOWN Widget";
54 	wid_value &= 0xf;
55 	if (names[wid_value])
56 		return names[wid_value];
57 	else
58 		return "UNKNOWN Widget";
59 }
60 
61 static void print_nid_array(struct snd_info_buffer *buffer,
62 			    struct hda_codec *codec, hda_nid_t nid,
63 			    struct snd_array *array)
64 {
65 	int i;
66 	struct hda_nid_item *items = array->list, *item;
67 	struct snd_kcontrol *kctl;
68 	for (i = 0; i < array->used; i++) {
69 		item = &items[i];
70 		if (item->nid == nid) {
71 			kctl = item->kctl;
72 			snd_iprintf(buffer,
73 			  "  Control: name=\"%s\", index=%i, device=%i\n",
74 			  kctl->id.name, kctl->id.index + item->index,
75 			  kctl->id.device);
76 			if (item->flags & HDA_NID_ITEM_AMP)
77 				snd_iprintf(buffer,
78 				  "    ControlAmp: chs=%lu, dir=%s, "
79 				  "idx=%lu, ofs=%lu\n",
80 				  get_amp_channels(kctl),
81 				  get_amp_direction(kctl) ? "Out" : "In",
82 				  get_amp_index(kctl),
83 				  get_amp_offset(kctl));
84 		}
85 	}
86 }
87 
88 static void print_nid_pcms(struct snd_info_buffer *buffer,
89 			   struct hda_codec *codec, hda_nid_t nid)
90 {
91 	int type;
92 	struct hda_pcm *cpcm;
93 
94 	list_for_each_entry(cpcm, &codec->pcm_list_head, list) {
95 		for (type = 0; type < 2; type++) {
96 			if (cpcm->stream[type].nid != nid || cpcm->pcm == NULL)
97 				continue;
98 			snd_iprintf(buffer, "  Device: name=\"%s\", "
99 				    "type=\"%s\", device=%i\n",
100 				    cpcm->name,
101 				    snd_hda_pcm_type_name[cpcm->pcm_type],
102 				    cpcm->pcm->device);
103 		}
104 	}
105 }
106 
107 static void print_amp_caps(struct snd_info_buffer *buffer,
108 			   struct hda_codec *codec, hda_nid_t nid, int dir)
109 {
110 	unsigned int caps;
111 	caps = param_read(codec, nid, dir == HDA_OUTPUT ?
112 			  AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
113 	if (caps == -1 || caps == 0) {
114 		snd_iprintf(buffer, "N/A\n");
115 		return;
116 	}
117 	snd_iprintf(buffer, "ofs=0x%02x, nsteps=0x%02x, stepsize=0x%02x, "
118 		    "mute=%x\n",
119 		    caps & AC_AMPCAP_OFFSET,
120 		    (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT,
121 		    (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT,
122 		    (caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT);
123 }
124 
125 /* is this a stereo widget or a stereo-to-mono mix? */
126 static bool is_stereo_amps(struct hda_codec *codec, hda_nid_t nid,
127 			   int dir, unsigned int wcaps, int indices)
128 {
129 	hda_nid_t conn;
130 
131 	if (wcaps & AC_WCAP_STEREO)
132 		return true;
133 	/* check for a stereo-to-mono mix; it must be:
134 	 * only a single connection, only for input, and only a mixer widget
135 	 */
136 	if (indices != 1 || dir != HDA_INPUT ||
137 	    get_wcaps_type(wcaps) != AC_WID_AUD_MIX)
138 		return false;
139 
140 	if (snd_hda_get_raw_connections(codec, nid, &conn, 1) < 0)
141 		return false;
142 	/* the connection source is a stereo? */
143 	wcaps = snd_hda_param_read(codec, conn, AC_PAR_AUDIO_WIDGET_CAP);
144 	return !!(wcaps & AC_WCAP_STEREO);
145 }
146 
147 static void print_amp_vals(struct snd_info_buffer *buffer,
148 			   struct hda_codec *codec, hda_nid_t nid,
149 			   int dir, unsigned int wcaps, int indices)
150 {
151 	unsigned int val;
152 	bool stereo;
153 	int i;
154 
155 	stereo = is_stereo_amps(codec, nid, dir, wcaps, indices);
156 
157 	dir = dir == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
158 	for (i = 0; i < indices; i++) {
159 		snd_iprintf(buffer, " [");
160 		val = snd_hda_codec_read(codec, nid, 0,
161 					 AC_VERB_GET_AMP_GAIN_MUTE,
162 					 AC_AMP_GET_LEFT | dir | i);
163 		snd_iprintf(buffer, "0x%02x", val);
164 		if (stereo) {
165 			val = snd_hda_codec_read(codec, nid, 0,
166 						 AC_VERB_GET_AMP_GAIN_MUTE,
167 						 AC_AMP_GET_RIGHT | dir | i);
168 			snd_iprintf(buffer, " 0x%02x", val);
169 		}
170 		snd_iprintf(buffer, "]");
171 	}
172 	snd_iprintf(buffer, "\n");
173 }
174 
175 static void print_pcm_rates(struct snd_info_buffer *buffer, unsigned int pcm)
176 {
177 	static unsigned int rates[] = {
178 		8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
179 		96000, 176400, 192000, 384000
180 	};
181 	int i;
182 
183 	pcm &= AC_SUPPCM_RATES;
184 	snd_iprintf(buffer, "    rates [0x%x]:", pcm);
185 	for (i = 0; i < ARRAY_SIZE(rates); i++)
186 		if (pcm & (1 << i))
187 			snd_iprintf(buffer,  " %d", rates[i]);
188 	snd_iprintf(buffer, "\n");
189 }
190 
191 static void print_pcm_bits(struct snd_info_buffer *buffer, unsigned int pcm)
192 {
193 	char buf[SND_PRINT_BITS_ADVISED_BUFSIZE];
194 
195 	snd_iprintf(buffer, "    bits [0x%x]:", (pcm >> 16) & 0xff);
196 	snd_print_pcm_bits(pcm, buf, sizeof(buf));
197 	snd_iprintf(buffer, "%s\n", buf);
198 }
199 
200 static void print_pcm_formats(struct snd_info_buffer *buffer,
201 			      unsigned int streams)
202 {
203 	snd_iprintf(buffer, "    formats [0x%x]:", streams & 0xf);
204 	if (streams & AC_SUPFMT_PCM)
205 		snd_iprintf(buffer, " PCM");
206 	if (streams & AC_SUPFMT_FLOAT32)
207 		snd_iprintf(buffer, " FLOAT");
208 	if (streams & AC_SUPFMT_AC3)
209 		snd_iprintf(buffer, " AC3");
210 	snd_iprintf(buffer, "\n");
211 }
212 
213 static void print_pcm_caps(struct snd_info_buffer *buffer,
214 			   struct hda_codec *codec, hda_nid_t nid)
215 {
216 	unsigned int pcm = param_read(codec, nid, AC_PAR_PCM);
217 	unsigned int stream = param_read(codec, nid, AC_PAR_STREAM);
218 	if (pcm == -1 || stream == -1) {
219 		snd_iprintf(buffer, "N/A\n");
220 		return;
221 	}
222 	print_pcm_rates(buffer, pcm);
223 	print_pcm_bits(buffer, pcm);
224 	print_pcm_formats(buffer, stream);
225 }
226 
227 static const char *get_jack_connection(u32 cfg)
228 {
229 	static const char * const names[16] = {
230 		"Unknown", "1/8", "1/4", "ATAPI",
231 		"RCA", "Optical","Digital", "Analog",
232 		"DIN", "XLR", "RJ11", "Comb",
233 		NULL, NULL, NULL, "Other"
234 	};
235 	cfg = (cfg & AC_DEFCFG_CONN_TYPE) >> AC_DEFCFG_CONN_TYPE_SHIFT;
236 	if (names[cfg])
237 		return names[cfg];
238 	else
239 		return "UNKNOWN";
240 }
241 
242 static const char *get_jack_color(u32 cfg)
243 {
244 	static const char * const names[16] = {
245 		"Unknown", "Black", "Grey", "Blue",
246 		"Green", "Red", "Orange", "Yellow",
247 		"Purple", "Pink", NULL, NULL,
248 		NULL, NULL, "White", "Other",
249 	};
250 	cfg = (cfg & AC_DEFCFG_COLOR) >> AC_DEFCFG_COLOR_SHIFT;
251 	if (names[cfg])
252 		return names[cfg];
253 	else
254 		return "UNKNOWN";
255 }
256 
257 /*
258  * Parse the pin default config value and returns the string of the
259  * jack location, e.g. "Rear", "Front", etc.
260  */
261 static const char *get_jack_location(u32 cfg)
262 {
263 	static const char * const bases[7] = {
264 		"N/A", "Rear", "Front", "Left", "Right", "Top", "Bottom",
265 	};
266 	static const unsigned char specials_idx[] = {
267 		0x07, 0x08,
268 		0x17, 0x18, 0x19,
269 		0x37, 0x38
270 	};
271 	static const char * const specials[] = {
272 		"Rear Panel", "Drive Bar",
273 		"Riser", "HDMI", "ATAPI",
274 		"Mobile-In", "Mobile-Out"
275 	};
276 	int i;
277 
278 	cfg = (cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT;
279 	if ((cfg & 0x0f) < 7)
280 		return bases[cfg & 0x0f];
281 	for (i = 0; i < ARRAY_SIZE(specials_idx); i++) {
282 		if (cfg == specials_idx[i])
283 			return specials[i];
284 	}
285 	return "UNKNOWN";
286 }
287 
288 /*
289  * Parse the pin default config value and returns the string of the
290  * jack connectivity, i.e. external or internal connection.
291  */
292 static const char *get_jack_connectivity(u32 cfg)
293 {
294 	static const char * const jack_locations[4] = {
295 		"Ext", "Int", "Sep", "Oth"
296 	};
297 
298 	return jack_locations[(cfg >> (AC_DEFCFG_LOCATION_SHIFT + 4)) & 3];
299 }
300 
301 /*
302  * Parse the pin default config value and returns the string of the
303  * jack type, i.e. the purpose of the jack, such as Line-Out or CD.
304  */
305 static const char *get_jack_type(u32 cfg)
306 {
307 	static const char * const jack_types[16] = {
308 		"Line Out", "Speaker", "HP Out", "CD",
309 		"SPDIF Out", "Digital Out", "Modem Line", "Modem Hand",
310 		"Line In", "Aux", "Mic", "Telephony",
311 		"SPDIF In", "Digital In", "Reserved", "Other"
312 	};
313 
314 	return jack_types[(cfg & AC_DEFCFG_DEVICE)
315 				>> AC_DEFCFG_DEVICE_SHIFT];
316 }
317 
318 static void print_pin_caps(struct snd_info_buffer *buffer,
319 			   struct hda_codec *codec, hda_nid_t nid,
320 			   int *supports_vref)
321 {
322 	static const char * const jack_conns[4] = {
323 		"Jack", "N/A", "Fixed", "Both"
324 	};
325 	unsigned int caps, val;
326 
327 	caps = param_read(codec, nid, AC_PAR_PIN_CAP);
328 	snd_iprintf(buffer, "  Pincap 0x%08x:", caps);
329 	if (caps & AC_PINCAP_IN)
330 		snd_iprintf(buffer, " IN");
331 	if (caps & AC_PINCAP_OUT)
332 		snd_iprintf(buffer, " OUT");
333 	if (caps & AC_PINCAP_HP_DRV)
334 		snd_iprintf(buffer, " HP");
335 	if (caps & AC_PINCAP_EAPD)
336 		snd_iprintf(buffer, " EAPD");
337 	if (caps & AC_PINCAP_PRES_DETECT)
338 		snd_iprintf(buffer, " Detect");
339 	if (caps & AC_PINCAP_BALANCE)
340 		snd_iprintf(buffer, " Balanced");
341 	if (caps & AC_PINCAP_HDMI) {
342 		/* Realtek uses this bit as a different meaning */
343 		if ((codec->core.vendor_id >> 16) == 0x10ec)
344 			snd_iprintf(buffer, " R/L");
345 		else {
346 			if (caps & AC_PINCAP_HBR)
347 				snd_iprintf(buffer, " HBR");
348 			snd_iprintf(buffer, " HDMI");
349 		}
350 	}
351 	if (caps & AC_PINCAP_DP)
352 		snd_iprintf(buffer, " DP");
353 	if (caps & AC_PINCAP_TRIG_REQ)
354 		snd_iprintf(buffer, " Trigger");
355 	if (caps & AC_PINCAP_IMP_SENSE)
356 		snd_iprintf(buffer, " ImpSense");
357 	snd_iprintf(buffer, "\n");
358 	if (caps & AC_PINCAP_VREF) {
359 		unsigned int vref =
360 			(caps & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
361 		snd_iprintf(buffer, "    Vref caps:");
362 		if (vref & AC_PINCAP_VREF_HIZ)
363 			snd_iprintf(buffer, " HIZ");
364 		if (vref & AC_PINCAP_VREF_50)
365 			snd_iprintf(buffer, " 50");
366 		if (vref & AC_PINCAP_VREF_GRD)
367 			snd_iprintf(buffer, " GRD");
368 		if (vref & AC_PINCAP_VREF_80)
369 			snd_iprintf(buffer, " 80");
370 		if (vref & AC_PINCAP_VREF_100)
371 			snd_iprintf(buffer, " 100");
372 		snd_iprintf(buffer, "\n");
373 		*supports_vref = 1;
374 	} else
375 		*supports_vref = 0;
376 	if (caps & AC_PINCAP_EAPD) {
377 		val = snd_hda_codec_read(codec, nid, 0,
378 					 AC_VERB_GET_EAPD_BTLENABLE, 0);
379 		snd_iprintf(buffer, "  EAPD 0x%x:", val);
380 		if (val & AC_EAPDBTL_BALANCED)
381 			snd_iprintf(buffer, " BALANCED");
382 		if (val & AC_EAPDBTL_EAPD)
383 			snd_iprintf(buffer, " EAPD");
384 		if (val & AC_EAPDBTL_LR_SWAP)
385 			snd_iprintf(buffer, " R/L");
386 		snd_iprintf(buffer, "\n");
387 	}
388 	caps = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
389 	snd_iprintf(buffer, "  Pin Default 0x%08x: [%s] %s at %s %s\n", caps,
390 		    jack_conns[(caps & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT],
391 		    get_jack_type(caps),
392 		    get_jack_connectivity(caps),
393 		    get_jack_location(caps));
394 	snd_iprintf(buffer, "    Conn = %s, Color = %s\n",
395 		    get_jack_connection(caps),
396 		    get_jack_color(caps));
397 	/* Default association and sequence values refer to default grouping
398 	 * of pin complexes and their sequence within the group. This is used
399 	 * for priority and resource allocation.
400 	 */
401 	snd_iprintf(buffer, "    DefAssociation = 0x%x, Sequence = 0x%x\n",
402 		    (caps & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT,
403 		    caps & AC_DEFCFG_SEQUENCE);
404 	if (((caps & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT) &
405 	    AC_DEFCFG_MISC_NO_PRESENCE) {
406 		/* Miscellaneous bit indicates external hardware does not
407 		 * support presence detection even if the pin complex
408 		 * indicates it is supported.
409 		 */
410 		snd_iprintf(buffer, "    Misc = NO_PRESENCE\n");
411 	}
412 }
413 
414 static void print_pin_ctls(struct snd_info_buffer *buffer,
415 			   struct hda_codec *codec, hda_nid_t nid,
416 			   int supports_vref)
417 {
418 	unsigned int pinctls;
419 
420 	pinctls = snd_hda_codec_read(codec, nid, 0,
421 				     AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
422 	snd_iprintf(buffer, "  Pin-ctls: 0x%02x:", pinctls);
423 	if (pinctls & AC_PINCTL_IN_EN)
424 		snd_iprintf(buffer, " IN");
425 	if (pinctls & AC_PINCTL_OUT_EN)
426 		snd_iprintf(buffer, " OUT");
427 	if (pinctls & AC_PINCTL_HP_EN)
428 		snd_iprintf(buffer, " HP");
429 	if (supports_vref) {
430 		int vref = pinctls & AC_PINCTL_VREFEN;
431 		switch (vref) {
432 		case AC_PINCTL_VREF_HIZ:
433 			snd_iprintf(buffer, " VREF_HIZ");
434 			break;
435 		case AC_PINCTL_VREF_50:
436 			snd_iprintf(buffer, " VREF_50");
437 			break;
438 		case AC_PINCTL_VREF_GRD:
439 			snd_iprintf(buffer, " VREF_GRD");
440 			break;
441 		case AC_PINCTL_VREF_80:
442 			snd_iprintf(buffer, " VREF_80");
443 			break;
444 		case AC_PINCTL_VREF_100:
445 			snd_iprintf(buffer, " VREF_100");
446 			break;
447 		}
448 	}
449 	snd_iprintf(buffer, "\n");
450 }
451 
452 static void print_vol_knob(struct snd_info_buffer *buffer,
453 			   struct hda_codec *codec, hda_nid_t nid)
454 {
455 	unsigned int cap = param_read(codec, nid, AC_PAR_VOL_KNB_CAP);
456 	snd_iprintf(buffer, "  Volume-Knob: delta=%d, steps=%d, ",
457 		    (cap >> 7) & 1, cap & 0x7f);
458 	cap = snd_hda_codec_read(codec, nid, 0,
459 				 AC_VERB_GET_VOLUME_KNOB_CONTROL, 0);
460 	snd_iprintf(buffer, "direct=%d, val=%d\n",
461 		    (cap >> 7) & 1, cap & 0x7f);
462 }
463 
464 static void print_audio_io(struct snd_info_buffer *buffer,
465 			   struct hda_codec *codec, hda_nid_t nid,
466 			   unsigned int wid_type)
467 {
468 	int conv = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
469 	snd_iprintf(buffer,
470 		    "  Converter: stream=%d, channel=%d\n",
471 		    (conv & AC_CONV_STREAM) >> AC_CONV_STREAM_SHIFT,
472 		    conv & AC_CONV_CHANNEL);
473 
474 	if (wid_type == AC_WID_AUD_IN && (conv & AC_CONV_CHANNEL) == 0) {
475 		int sdi = snd_hda_codec_read(codec, nid, 0,
476 					     AC_VERB_GET_SDI_SELECT, 0);
477 		snd_iprintf(buffer, "  SDI-Select: %d\n",
478 			    sdi & AC_SDI_SELECT);
479 	}
480 }
481 
482 static void print_digital_conv(struct snd_info_buffer *buffer,
483 			       struct hda_codec *codec, hda_nid_t nid)
484 {
485 	unsigned int digi1 = snd_hda_codec_read(codec, nid, 0,
486 						AC_VERB_GET_DIGI_CONVERT_1, 0);
487 	unsigned char digi2 = digi1 >> 8;
488 	unsigned char digi3 = digi1 >> 16;
489 
490 	snd_iprintf(buffer, "  Digital:");
491 	if (digi1 & AC_DIG1_ENABLE)
492 		snd_iprintf(buffer, " Enabled");
493 	if (digi1 & AC_DIG1_V)
494 		snd_iprintf(buffer, " Validity");
495 	if (digi1 & AC_DIG1_VCFG)
496 		snd_iprintf(buffer, " ValidityCfg");
497 	if (digi1 & AC_DIG1_EMPHASIS)
498 		snd_iprintf(buffer, " Preemphasis");
499 	if (digi1 & AC_DIG1_COPYRIGHT)
500 		snd_iprintf(buffer, " Non-Copyright");
501 	if (digi1 & AC_DIG1_NONAUDIO)
502 		snd_iprintf(buffer, " Non-Audio");
503 	if (digi1 & AC_DIG1_PROFESSIONAL)
504 		snd_iprintf(buffer, " Pro");
505 	if (digi1 & AC_DIG1_LEVEL)
506 		snd_iprintf(buffer, " GenLevel");
507 	if (digi3 & AC_DIG3_KAE)
508 		snd_iprintf(buffer, " KAE");
509 	snd_iprintf(buffer, "\n");
510 	snd_iprintf(buffer, "  Digital category: 0x%x\n",
511 		    digi2 & AC_DIG2_CC);
512 	snd_iprintf(buffer, "  IEC Coding Type: 0x%x\n",
513 			digi3 & AC_DIG3_ICT);
514 }
515 
516 static const char *get_pwr_state(u32 state)
517 {
518 	static const char * const buf[] = {
519 		"D0", "D1", "D2", "D3", "D3cold"
520 	};
521 	if (state < ARRAY_SIZE(buf))
522 		return buf[state];
523 	return "UNKNOWN";
524 }
525 
526 static void print_power_state(struct snd_info_buffer *buffer,
527 			      struct hda_codec *codec, hda_nid_t nid)
528 {
529 	static const char * const names[] = {
530 		[ilog2(AC_PWRST_D0SUP)]		= "D0",
531 		[ilog2(AC_PWRST_D1SUP)]		= "D1",
532 		[ilog2(AC_PWRST_D2SUP)]		= "D2",
533 		[ilog2(AC_PWRST_D3SUP)]		= "D3",
534 		[ilog2(AC_PWRST_D3COLDSUP)]	= "D3cold",
535 		[ilog2(AC_PWRST_S3D3COLDSUP)]	= "S3D3cold",
536 		[ilog2(AC_PWRST_CLKSTOP)]	= "CLKSTOP",
537 		[ilog2(AC_PWRST_EPSS)]		= "EPSS",
538 	};
539 
540 	int sup = param_read(codec, nid, AC_PAR_POWER_STATE);
541 	int pwr = snd_hda_codec_read(codec, nid, 0,
542 				     AC_VERB_GET_POWER_STATE, 0);
543 	if (sup != -1) {
544 		int i;
545 
546 		snd_iprintf(buffer, "  Power states: ");
547 		for (i = 0; i < ARRAY_SIZE(names); i++) {
548 			if (sup & (1U << i))
549 				snd_iprintf(buffer, " %s", names[i]);
550 		}
551 		snd_iprintf(buffer, "\n");
552 	}
553 
554 	snd_iprintf(buffer, "  Power: setting=%s, actual=%s",
555 		    get_pwr_state(pwr & AC_PWRST_SETTING),
556 		    get_pwr_state((pwr & AC_PWRST_ACTUAL) >>
557 				  AC_PWRST_ACTUAL_SHIFT));
558 	if (pwr & AC_PWRST_ERROR)
559 		snd_iprintf(buffer, ", Error");
560 	if (pwr & AC_PWRST_CLK_STOP_OK)
561 		snd_iprintf(buffer, ", Clock-stop-OK");
562 	if (pwr & AC_PWRST_SETTING_RESET)
563 		snd_iprintf(buffer, ", Setting-reset");
564 	snd_iprintf(buffer, "\n");
565 }
566 
567 static void print_unsol_cap(struct snd_info_buffer *buffer,
568 			      struct hda_codec *codec, hda_nid_t nid)
569 {
570 	int unsol = snd_hda_codec_read(codec, nid, 0,
571 				       AC_VERB_GET_UNSOLICITED_RESPONSE, 0);
572 	snd_iprintf(buffer,
573 		    "  Unsolicited: tag=%02x, enabled=%d\n",
574 		    unsol & AC_UNSOL_TAG,
575 		    (unsol & AC_UNSOL_ENABLED) ? 1 : 0);
576 }
577 
578 static inline bool can_dump_coef(struct hda_codec *codec)
579 {
580 	switch (dump_coef) {
581 	case 0: return false;
582 	case 1: return true;
583 	default: return codec->dump_coef;
584 	}
585 }
586 
587 static void print_proc_caps(struct snd_info_buffer *buffer,
588 			    struct hda_codec *codec, hda_nid_t nid)
589 {
590 	unsigned int i, ncoeff, oldindex;
591 	unsigned int proc_caps = param_read(codec, nid, AC_PAR_PROC_CAP);
592 	ncoeff = (proc_caps & AC_PCAP_NUM_COEF) >> AC_PCAP_NUM_COEF_SHIFT;
593 	snd_iprintf(buffer, "  Processing caps: benign=%d, ncoeff=%d\n",
594 		    proc_caps & AC_PCAP_BENIGN, ncoeff);
595 
596 	if (!can_dump_coef(codec))
597 		return;
598 
599 	/* Note: This is racy - another process could run in parallel and change
600 	   the coef index too. */
601 	oldindex = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_COEF_INDEX, 0);
602 	for (i = 0; i < ncoeff; i++) {
603 		unsigned int val;
604 		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX, i);
605 		val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_PROC_COEF,
606 					 0);
607 		snd_iprintf(buffer, "    Coeff 0x%02x: 0x%04x\n", i, val);
608 	}
609 	snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX, oldindex);
610 }
611 
612 static void print_conn_list(struct snd_info_buffer *buffer,
613 			    struct hda_codec *codec, hda_nid_t nid,
614 			    unsigned int wid_type, hda_nid_t *conn,
615 			    int conn_len)
616 {
617 	int c, curr = -1;
618 	const hda_nid_t *list;
619 	int cache_len;
620 
621 	if (conn_len > 1 &&
622 	    wid_type != AC_WID_AUD_MIX &&
623 	    wid_type != AC_WID_VOL_KNB &&
624 	    wid_type != AC_WID_POWER)
625 		curr = snd_hda_codec_read(codec, nid, 0,
626 					  AC_VERB_GET_CONNECT_SEL, 0);
627 	snd_iprintf(buffer, "  Connection: %d\n", conn_len);
628 	if (conn_len > 0) {
629 		snd_iprintf(buffer, "    ");
630 		for (c = 0; c < conn_len; c++) {
631 			snd_iprintf(buffer, " 0x%02x", conn[c]);
632 			if (c == curr)
633 				snd_iprintf(buffer, "*");
634 		}
635 		snd_iprintf(buffer, "\n");
636 	}
637 
638 	/* Get Cache connections info */
639 	cache_len = snd_hda_get_conn_list(codec, nid, &list);
640 	if (cache_len >= 0 && (cache_len != conn_len ||
641 			      memcmp(list, conn, conn_len) != 0)) {
642 		snd_iprintf(buffer, "  In-driver Connection: %d\n", cache_len);
643 		if (cache_len > 0) {
644 			snd_iprintf(buffer, "    ");
645 			for (c = 0; c < cache_len; c++)
646 				snd_iprintf(buffer, " 0x%02x", list[c]);
647 			snd_iprintf(buffer, "\n");
648 		}
649 	}
650 }
651 
652 static void print_gpio(struct snd_info_buffer *buffer,
653 		       struct hda_codec *codec, hda_nid_t nid)
654 {
655 	unsigned int gpio =
656 		param_read(codec, codec->core.afg, AC_PAR_GPIO_CAP);
657 	unsigned int enable, direction, wake, unsol, sticky, data;
658 	int i, max;
659 	snd_iprintf(buffer, "GPIO: io=%d, o=%d, i=%d, "
660 		    "unsolicited=%d, wake=%d\n",
661 		    gpio & AC_GPIO_IO_COUNT,
662 		    (gpio & AC_GPIO_O_COUNT) >> AC_GPIO_O_COUNT_SHIFT,
663 		    (gpio & AC_GPIO_I_COUNT) >> AC_GPIO_I_COUNT_SHIFT,
664 		    (gpio & AC_GPIO_UNSOLICITED) ? 1 : 0,
665 		    (gpio & AC_GPIO_WAKE) ? 1 : 0);
666 	max = gpio & AC_GPIO_IO_COUNT;
667 	if (!max || max > 8)
668 		return;
669 	enable = snd_hda_codec_read(codec, nid, 0,
670 				    AC_VERB_GET_GPIO_MASK, 0);
671 	direction = snd_hda_codec_read(codec, nid, 0,
672 				       AC_VERB_GET_GPIO_DIRECTION, 0);
673 	wake = snd_hda_codec_read(codec, nid, 0,
674 				  AC_VERB_GET_GPIO_WAKE_MASK, 0);
675 	unsol  = snd_hda_codec_read(codec, nid, 0,
676 				    AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK, 0);
677 	sticky = snd_hda_codec_read(codec, nid, 0,
678 				    AC_VERB_GET_GPIO_STICKY_MASK, 0);
679 	data = snd_hda_codec_read(codec, nid, 0,
680 				  AC_VERB_GET_GPIO_DATA, 0);
681 	for (i = 0; i < max; ++i)
682 		snd_iprintf(buffer,
683 			    "  IO[%d]: enable=%d, dir=%d, wake=%d, "
684 			    "sticky=%d, data=%d, unsol=%d\n", i,
685 			    (enable & (1<<i)) ? 1 : 0,
686 			    (direction & (1<<i)) ? 1 : 0,
687 			    (wake & (1<<i)) ? 1 : 0,
688 			    (sticky & (1<<i)) ? 1 : 0,
689 			    (data & (1<<i)) ? 1 : 0,
690 			    (unsol & (1<<i)) ? 1 : 0);
691 	/* FIXME: add GPO and GPI pin information */
692 	print_nid_array(buffer, codec, nid, &codec->mixers);
693 	print_nid_array(buffer, codec, nid, &codec->nids);
694 }
695 
696 static void print_device_list(struct snd_info_buffer *buffer,
697 			    struct hda_codec *codec, hda_nid_t nid)
698 {
699 	int i, curr = -1;
700 	u8 dev_list[AC_MAX_DEV_LIST_LEN];
701 	int devlist_len;
702 
703 	devlist_len = snd_hda_get_devices(codec, nid, dev_list,
704 					AC_MAX_DEV_LIST_LEN);
705 	snd_iprintf(buffer, "  Devices: %d\n", devlist_len);
706 	if (devlist_len <= 0)
707 		return;
708 
709 	curr = snd_hda_codec_read(codec, nid, 0,
710 				AC_VERB_GET_DEVICE_SEL, 0);
711 
712 	for (i = 0; i < devlist_len; i++) {
713 		if (i == curr)
714 			snd_iprintf(buffer, "    *");
715 		else
716 			snd_iprintf(buffer, "     ");
717 
718 		snd_iprintf(buffer,
719 			"Dev %02d: PD = %d, ELDV = %d, IA = %d\n", i,
720 			!!(dev_list[i] & AC_DE_PD),
721 			!!(dev_list[i] & AC_DE_ELDV),
722 			!!(dev_list[i] & AC_DE_IA));
723 	}
724 }
725 
726 static void print_codec_core_info(struct hdac_device *codec,
727 				  struct snd_info_buffer *buffer)
728 {
729 	snd_iprintf(buffer, "Codec: ");
730 	if (codec->vendor_name && codec->chip_name)
731 		snd_iprintf(buffer, "%s %s\n",
732 			    codec->vendor_name, codec->chip_name);
733 	else
734 		snd_iprintf(buffer, "Not Set\n");
735 	snd_iprintf(buffer, "Address: %d\n", codec->addr);
736 	if (codec->afg)
737 		snd_iprintf(buffer, "AFG Function Id: 0x%x (unsol %u)\n",
738 			codec->afg_function_id, codec->afg_unsol);
739 	if (codec->mfg)
740 		snd_iprintf(buffer, "MFG Function Id: 0x%x (unsol %u)\n",
741 			codec->mfg_function_id, codec->mfg_unsol);
742 	snd_iprintf(buffer, "Vendor Id: 0x%08x\n", codec->vendor_id);
743 	snd_iprintf(buffer, "Subsystem Id: 0x%08x\n", codec->subsystem_id);
744 	snd_iprintf(buffer, "Revision Id: 0x%x\n", codec->revision_id);
745 
746 	if (codec->mfg)
747 		snd_iprintf(buffer, "Modem Function Group: 0x%x\n", codec->mfg);
748 	else
749 		snd_iprintf(buffer, "No Modem Function Group found\n");
750 }
751 
752 static void print_codec_info(struct snd_info_entry *entry,
753 			     struct snd_info_buffer *buffer)
754 {
755 	struct hda_codec *codec = entry->private_data;
756 	hda_nid_t nid, fg;
757 	int i, nodes;
758 
759 	print_codec_core_info(&codec->core, buffer);
760 	fg = codec->core.afg;
761 	if (!fg)
762 		return;
763 	snd_hda_power_up(codec);
764 	snd_iprintf(buffer, "Default PCM:\n");
765 	print_pcm_caps(buffer, codec, fg);
766 	snd_iprintf(buffer, "Default Amp-In caps: ");
767 	print_amp_caps(buffer, codec, fg, HDA_INPUT);
768 	snd_iprintf(buffer, "Default Amp-Out caps: ");
769 	print_amp_caps(buffer, codec, fg, HDA_OUTPUT);
770 	snd_iprintf(buffer, "State of AFG node 0x%02x:\n", fg);
771 	print_power_state(buffer, codec, fg);
772 
773 	nodes = snd_hda_get_sub_nodes(codec, fg, &nid);
774 	if (! nid || nodes < 0) {
775 		snd_iprintf(buffer, "Invalid AFG subtree\n");
776 		snd_hda_power_down(codec);
777 		return;
778 	}
779 
780 	print_gpio(buffer, codec, fg);
781 	if (codec->proc_widget_hook)
782 		codec->proc_widget_hook(buffer, codec, fg);
783 
784 	for (i = 0; i < nodes; i++, nid++) {
785 		unsigned int wid_caps =
786 			param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP);
787 		unsigned int wid_type = get_wcaps_type(wid_caps);
788 		hda_nid_t *conn = NULL;
789 		int conn_len = 0;
790 
791 		snd_iprintf(buffer, "Node 0x%02x [%s] wcaps 0x%x:", nid,
792 			    get_wid_type_name(wid_type), wid_caps);
793 		if (wid_caps & AC_WCAP_STEREO) {
794 			unsigned int chans = get_wcaps_channels(wid_caps);
795 			if (chans == 2)
796 				snd_iprintf(buffer, " Stereo");
797 			else
798 				snd_iprintf(buffer, " %d-Channels", chans);
799 		} else
800 			snd_iprintf(buffer, " Mono");
801 		if (wid_caps & AC_WCAP_DIGITAL)
802 			snd_iprintf(buffer, " Digital");
803 		if (wid_caps & AC_WCAP_IN_AMP)
804 			snd_iprintf(buffer, " Amp-In");
805 		if (wid_caps & AC_WCAP_OUT_AMP)
806 			snd_iprintf(buffer, " Amp-Out");
807 		if (wid_caps & AC_WCAP_STRIPE)
808 			snd_iprintf(buffer, " Stripe");
809 		if (wid_caps & AC_WCAP_LR_SWAP)
810 			snd_iprintf(buffer, " R/L");
811 		if (wid_caps & AC_WCAP_CP_CAPS)
812 			snd_iprintf(buffer, " CP");
813 		snd_iprintf(buffer, "\n");
814 
815 		print_nid_array(buffer, codec, nid, &codec->mixers);
816 		print_nid_array(buffer, codec, nid, &codec->nids);
817 		print_nid_pcms(buffer, codec, nid);
818 
819 		/* volume knob is a special widget that always have connection
820 		 * list
821 		 */
822 		if (wid_type == AC_WID_VOL_KNB)
823 			wid_caps |= AC_WCAP_CONN_LIST;
824 
825 		if (wid_caps & AC_WCAP_CONN_LIST) {
826 			conn_len = snd_hda_get_num_raw_conns(codec, nid);
827 			if (conn_len > 0) {
828 				conn = kmalloc_array(conn_len,
829 						     sizeof(hda_nid_t),
830 						     GFP_KERNEL);
831 				if (!conn)
832 					return;
833 				if (snd_hda_get_raw_connections(codec, nid, conn,
834 								conn_len) < 0)
835 					conn_len = 0;
836 			}
837 		}
838 
839 		if (wid_caps & AC_WCAP_IN_AMP) {
840 			snd_iprintf(buffer, "  Amp-In caps: ");
841 			print_amp_caps(buffer, codec, nid, HDA_INPUT);
842 			snd_iprintf(buffer, "  Amp-In vals: ");
843 			if (wid_type == AC_WID_PIN ||
844 			    (codec->single_adc_amp &&
845 			     wid_type == AC_WID_AUD_IN))
846 				print_amp_vals(buffer, codec, nid, HDA_INPUT,
847 					       wid_caps, 1);
848 			else
849 				print_amp_vals(buffer, codec, nid, HDA_INPUT,
850 					       wid_caps, conn_len);
851 		}
852 		if (wid_caps & AC_WCAP_OUT_AMP) {
853 			snd_iprintf(buffer, "  Amp-Out caps: ");
854 			print_amp_caps(buffer, codec, nid, HDA_OUTPUT);
855 			snd_iprintf(buffer, "  Amp-Out vals: ");
856 			if (wid_type == AC_WID_PIN &&
857 			    codec->pin_amp_workaround)
858 				print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
859 					       wid_caps, conn_len);
860 			else
861 				print_amp_vals(buffer, codec, nid, HDA_OUTPUT,
862 					       wid_caps, 1);
863 		}
864 
865 		switch (wid_type) {
866 		case AC_WID_PIN: {
867 			int supports_vref;
868 			print_pin_caps(buffer, codec, nid, &supports_vref);
869 			print_pin_ctls(buffer, codec, nid, supports_vref);
870 			break;
871 		}
872 		case AC_WID_VOL_KNB:
873 			print_vol_knob(buffer, codec, nid);
874 			break;
875 		case AC_WID_AUD_OUT:
876 		case AC_WID_AUD_IN:
877 			print_audio_io(buffer, codec, nid, wid_type);
878 			if (wid_caps & AC_WCAP_DIGITAL)
879 				print_digital_conv(buffer, codec, nid);
880 			if (wid_caps & AC_WCAP_FORMAT_OVRD) {
881 				snd_iprintf(buffer, "  PCM:\n");
882 				print_pcm_caps(buffer, codec, nid);
883 			}
884 			break;
885 		}
886 
887 		if (wid_caps & AC_WCAP_UNSOL_CAP)
888 			print_unsol_cap(buffer, codec, nid);
889 
890 		if (wid_caps & AC_WCAP_POWER)
891 			print_power_state(buffer, codec, nid);
892 
893 		if (wid_caps & AC_WCAP_DELAY)
894 			snd_iprintf(buffer, "  Delay: %d samples\n",
895 				    (wid_caps & AC_WCAP_DELAY) >>
896 				    AC_WCAP_DELAY_SHIFT);
897 
898 		if (wid_type == AC_WID_PIN && codec->dp_mst)
899 			print_device_list(buffer, codec, nid);
900 
901 		if (wid_caps & AC_WCAP_CONN_LIST)
902 			print_conn_list(buffer, codec, nid, wid_type,
903 					conn, conn_len);
904 
905 		if (wid_caps & AC_WCAP_PROC_WID)
906 			print_proc_caps(buffer, codec, nid);
907 
908 		if (codec->proc_widget_hook)
909 			codec->proc_widget_hook(buffer, codec, nid);
910 
911 		kfree(conn);
912 	}
913 	snd_hda_power_down(codec);
914 }
915 
916 /*
917  * create a proc read
918  */
919 int snd_hda_codec_proc_new(struct hda_codec *codec)
920 {
921 	char name[32];
922 
923 	snprintf(name, sizeof(name), "codec#%d", codec->core.addr);
924 	return snd_card_ro_proc_new(codec->card, name, codec, print_codec_info);
925 }
926 
927